In this task, you are given an article. Your task is to summarize the article in a sentence.

Walsh, 25, was a key player last season, making 43 appearances in all competitions having joined the club on a two-year deal from Crawley in 2015.
"We want players who can take us to the next level and then grow with the club - Joe fits that mould," manager Robbie Neilson told the club website.
"He gives us options at left-back and centre-back and I'm sure he'll go from strength to strength."
Defender Joe Walsh has signed a new three-year contract with MK Dons.

Aberdeenshire West MSP Alexander Burnett was elected in May.
The SNP said the allegations were a "serious matter", but the Scottish Conservatives said the SNP was "engaged in a nothing more than a politically-motivated fishing expedition".
Police said an election expenses complaint was under consideration.
An SNP spokesperson said: "The fact that these allegations have now been reported to Police Scotland, in line with the advice of the Electoral Commission, underlines the seriousness of this matter for Alexander Burnett and Ruth Davidson.
"As such, it is only right that the police are now given the opportunity to fully investigate any potential breach of election rules."
A spokesman for the Scottish Conservatives said: "The SNP tried the Electoral Commission first, was told it had gone to the wrong place, and is now trying the police."
A Scottish Conservative MSP has been reported to Police Scotland over allegations he breached election campaign spending rules.

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11 April 2015 Last updated at 09:06 BST
The 71-year-old crossed the finish line in Morocco, north Africa, after running 159 miles, over six days, in sweltering temperatures.
He almost didn't make it - he nearly had to pull out on Thursday because he was feeling unwell.
His challenge has raised nearly Â£1m for charity and he's been telling us what it was all like...

British adventurer Sir Ranulph Fiennes has become the oldest Brit to complete the gruelling desert race, the Marathon des Sables.

